Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Received-SPF: Pass (protection.outlook.com: domain of amd.com designates
 165.204.84.17 as permitted sender) receiver=protection.outlook.com;
 client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C
From:   Mario Limonciello <mario.limonciello@amd.com>
To:     Box David E <david.e.box@intel.com>, <jstultz@google.com>,
        <pavel@ucw.cz>, <svenva@chromium.org>,
        Rajneesh Bhardwaj <irenic.rajneesh@gmail.com>
CC:     <Shyam-sundar.S-k@amd.com>, <rrangel@chromium.org>,
        Jain Rajat <rajatja@google.com>, <hdegoede@redhat.com>,
        Mario Limonciello <mario.limonciello@amd.com>,
        =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= <ilpo.jarvinen@linux.intel.com>,
        "David E . Box" <david.e.box@linux.intel.com>,
        Mark Gross <markgross@kernel.org>,
        <platform-driver-x86@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>
Subject: [PATCH v9 4/4] platform/x86/intel/pmc: core: Report duration of time in HW sleep state
Date:   Thu, 13 Apr 2023 20:23:45 -0500
Message-ID: <20230414012346.1946-5-mario.limonciello@amd.com>
In-Reply-To: <20230414012346.1946-1-mario.limonciello@amd.com>
References: <20230414012346.1946-1-mario.limonciello@amd.com>
MIME-Version: 1.0
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: 8bit
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Apr 2023 01:24:27.3414
 (UTC)
X-MS-Exchange-CrossTenant-Network-Message-Id: 72991e36-f0ee-40ce-41e2-08db3c86fd38
X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d
X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com]
X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT050.eop-nam11.prod.protection.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Anonymous
X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem
X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW4PR12MB7189
X-Spam-Status: No, score=-1.1 required=5.0 tests=BAYES_00,DKIM_SIGNED,
        DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FORGED_SPF_HELO,
        RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE
        autolearn=no autolearn_force=no version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on
        lindbergh.monkeyblade.net
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

intel_pmc_core displays a warning when the module parameter
`warn_on_s0ix_failures` is set and a suspend didn't get to a HW sleep
state.

Report this to the standard kernel reporting infrastructure so that
userspace software can query after the suspend cycle is done.

Suggested-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
---
v8->v9:
 * Use FIELD_MAX and GENMASK
 * Add tags
v7->v8:
 * Report max sleep as well
---
 drivers/platform/x86/intel/pmc/core.c | 4 ++++
 drivers/platform/x86/intel/pmc/core.h | 2 ++
 2 files changed, 6 insertions(+)

diff --git a/drivers/platform/x86/intel/pmc/core.c b/drivers/platform/x86/intel/pmc/core.c
index 925c5d676a43..298f27ba1e10 100644
--- a/drivers/platform/x86/intel/pmc/core.c
+++ b/drivers/platform/x86/intel/pmc/core.c
@@ -1153,6 +1153,8 @@ static int pmc_core_probe(struct platform_device *pdev)
 	pmc_core_do_dmi_quirks(pmcdev);
 
 	pmc_core_dbgfs_register(pmcdev);
+	pm_report_max_hw_sleep(FIELD_MAX(SLP_S0_RES_COUNTER_MASK) *
+			       pmc_core_adjust_slp_s0_step(pmcdev, 1));
 
 	device_initialized = true;
 	dev_info(&pdev->dev, " initialized\n");
@@ -1214,6 +1216,8 @@ static inline bool pmc_core_is_s0ix_failed(struct pmc_dev *pmcdev)
 	if (pmc_core_dev_state_get(pmcdev, &s0ix_counter))
 		return false;
 
+	pm_report_hw_sleep_time((u32)(s0ix_counter - pmcdev->s0ix_counter));
+
 	if (s0ix_counter == pmcdev->s0ix_counter)
 		return true;
 
diff --git a/drivers/platform/x86/intel/pmc/core.h b/drivers/platform/x86/intel/pmc/core.h
index 51d73efceaf3..9ca9b9746719 100644
--- a/drivers/platform/x86/intel/pmc/core.h
+++ b/drivers/platform/x86/intel/pmc/core.h
@@ -16,6 +16,8 @@
 #include <linux/bits.h>
 #include <linux/platform_device.h>
 
+#define SLP_S0_RES_COUNTER_MASK			GENMASK(31, 0)
+
 #define PMC_BASE_ADDR_DEFAULT			0xFE000000
 
 /* Sunrise Point Power Management Controller PCI Device ID */
-- 
2.34.1